Combustion power engine



Dec. 14, 71926.

' F. LANG,

comausnonrowan ENGINEl Filed Sept. 25 925 Patented Dec. 14, 1926.

UNITED s'm'ras FRANZ LANG, OF STUTTGABT, GERMANY.

COMBUSTION POWER ENGINE.

Application filed September 25, 1925, Serial Noi 58,598, and in Germany October 2, 1924.

The present invention relates to a'combustion power engine which is provided with at least one special mixing. or preliminary combustion chamber. The characterizing feature of the invention is, that the mixing or preliminary combustion chamber containing the fuel injection nozzle is laterally arranged on the cylinder and communicates by means of a nozzle-like acting overflowo enin with the combustion space within t e cy inder. In this manner a thorough whirling and mixing of the injected fuel with the air forced into the preliminary chamber through the overflow-nozzle is effected.

In the accompanying drawing, in which two forms of construction of my invention are illustrated by way of example:

Fig. 1 shows mlongitudinal section the first form of construction andv Fig. 2 shows also in longitudinal section the second form of construction.

In both forms of construction a mixing or preliminary combustion chamber is arranged laterally on the upright cylinder Z of a combustion power engine and adjacent to the cylinder head, said chamber 1) being connected with the cylinder combustion space d by a nozzle-like acting opening a. The fuel is injected into the combustion chamber b by means of a nozzle (1. In both forms of construction e indicates the air in let valve and f indicates the exhaust-valve of themotor cylinder, working in fourcycle operation, the reciprocating piston g of said cylinder being shown in its upper dead center position.

, During the compression stroke the air present in the cylinder combustion space (1 is compressed and on account of the nozzle action in the overflow-opening a flows through, said opening into the mixing chamber 12, producing therein a violent whirling of the air. The fuel which is injected through the nozzle a in finely divided state contacts with said whirl and mixes so thoroughly with the compressed air, that m the mixing chamber a combustion is started. The pressure increase resulting therefrom drives the mixture from the reliminary chamber into the cylinder com ustion space (1.

In the second form of construction, illustrated in Fig. 2, the part forming the preliminary chamber is connected to the cylinder Z by means of a flange and is secured screws h. In contraclistinction to the arrangement according to Fig. 1 the whirl in the preliminary chamber is increased at the end of that the piston g covers tion overflow-opening c, of the reduced sectional area of this the nozzle-like ac--, so that on account as- .sage an increased speed-of theair' over ow'-,

ing towards the mixing chamber is obtainedl The overflow-opening 0 is arranged the compression stroke therebyf centrically in a centering stud 71 provided on the body of \Vhen the entire chamber is turned around the centering stu i, the vertical opening is altered and therewith also the proportion, in which the piston covers the overflow-opening. Accordingly it is poss1- ble to adjust the overflow-opening 1n the most favorable vertical position. I

It it self evident, that the combustion spaces shown in the drawing can be constructed in a different manner and also the arrangement and position 'of the injectionnozzle can be changed, for instance the latter can be arranged vertically or obliriuely. Further the cross sectional shape 0 the overflow-opening can be selected as it may appear to be desirable, and a plurality of overflow-openings can be provided between the preliminary chamber and the cylinder.

In case that several preliminary cham here are present it is possible, rovided that the overflow-openings are a apted to be partly covered by the piston in accordance with the just described second form of construction, to arrange some of the overflowopenings adjustable and the remaining ones stationary.

I claim:

1. A combustion power engine with self ignition, comprising, in combination, a special mixingor preliminary combustion chamber arranged laterally on each cylin der, a fuel injection nozzle provided within said preliminary chamber anda nozzle like overflow-opening connecting said pre liminary chamber with the cylinder combus-- tion space, said overflow-opening being adapted to be partly covered by the cylinder piston during its compression stroke, in order to change the overflowthe preliminary chamber. body of the preliminary d position of the overflow-- i and'whirling I, relations of the airand mixture-quantities 5. A combustion power engine with self ignition, comprising, in combination, a speoral mixing-- or preliminary combustion chamber arranged laterally on each cylinder, a fuel injection nozzle provided within said preliminary chamber and a nozzle-like overflow-opening connecting said preliminary chamber with the cylinder combustion space, said overflow-opening being adapted,

to be partly covered by the cylinder piston during its compression stroke, and being further adapted to be adjusted longitudinal of the piston stroke.

3. In an internal combustion engine, the

- combination,""wit h a cylinder, of a hollow body mounted 'for rotatable movement in the cylinder wall, said body providing a special mixing or preliminary combustion chamber communicating with said cylinder by a nozzle-like opening adapted to be partly covered by the piston during its comprescentrically of said body movement of said body will adjust the-position of said opening longitudinally of the piston stroke.

I In; testimony whereof ,I, have hereunto aflixed my signature.

FRANZ LANe.

sion stroke, said opening being arranged ec- 1 whereby rotatable 

